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WO2004034745A1 - Disposition d'element chauffant pour couverture electrique ou analogue - Google Patents

Disposition d'element chauffant pour couverture electrique ou analogue Download PDF

Info

Publication number
WO2004034745A1
WO2004034745A1 PCT/US2003/032005 US0332005W WO2004034745A1 WO 2004034745 A1 WO2004034745 A1 WO 2004034745A1 US 0332005 W US0332005 W US 0332005W WO 2004034745 A1 WO2004034745 A1 WO 2004034745A1
Authority
WO
WIPO (PCT)
Prior art keywords
heating
heating element
passages
passage
heating elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2003/032005
Other languages
English (en)
Inventor
Sheldon P. Carr
Richard Zimmerer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Perfect Fit Industries Inc
Perfect Fit Ind Inc
Original Assignee
Perfect Fit Industries Inc
Perfect Fit Ind Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Perfect Fit Industries Inc, Perfect Fit Ind Inc filed Critical Perfect Fit Industries Inc
Priority to AU2003282517A priority Critical patent/AU2003282517A1/en
Priority to GB0506452A priority patent/GB2408903B/en
Publication of WO2004034745A1 publication Critical patent/WO2004034745A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • H05B3/342—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs heaters used in textiles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
    • H05B3/34—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/002—Heaters using a particular layout for the resistive material or resistive elements
    • H05B2203/003—Heaters using a particular layout for the resistive material or resistive elements using serpentine layout
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54

Definitions

  • This invention relates to a pliable member incorporating an electrically operated heating element, such as an electric blanket, mattress pad, heating pad or the like, and more particularly to an arrangement for positioning a heating element within the pliable member so as to prevent the adverse consequences that can result from exposure of the heating element to tensile forces or other conditions that can cause strain on the heating element.
  • a pliable electric heating member such as an electric blanket, mattress pad, heating pad, throw or the like, typically includes a soft pliable outer member or shell formed of two layers between which one or more heating elements, such as resistive heating wires, are located.
  • the heating wires are generally parallel and spaced apart from each other, and are maintained in place via a stitching arrangement or a web-type material secured to one of the layers about each heating wire.
  • Each heating wire is supplied with electrical power from a power supply, and the resistance of the heating wires functions to generate heat to provide a warm environment for the user of the electric blanket, heating pad or throw.
  • the heating wires are arranged in a linear orientation parallel to each other. While this type of heating wire configuration provides satisfactory operation, it involves certain disadvantages in that the heating wires have little or no "give". This can result in the heating wires becoming broken or disconnected from the power input of the pliable heating member, such as when a concentrated load (e.g. a user's elbow or knee) is applied to a portion of the pliable member within which the heating wire is located, which results in application of tensile forces to the heating wires.
  • a concentrated load e.g. a user's elbow or knee
  • Such breaking of the heating wires or disconnection of the heating wires from the power input can occur in any condition that causes stretching of the blanket material, and thereby the heating elements, beyond the capability of the heating wires to accommodate the tensile forces applied to the heating wires. It is an object of the present invention to provide a heating element arrangement for a pliable heating member such as an electric blanket, mattress pad,
  • a heating device such as an electric blanket, mattress pad, heating pad or throw, includes a pliable member having first and second oppositely facing surfaces, and at least one elongated heating element located between the first and second oppositely facing surfaces.
  • the pliable member defines a series of passages, and an elongated heating element is located within each passage.
  • the elongated heating element in each passage has a non-linear configuration, such that the overall length of the elongated heating element contained within the passage exceeds the length of the passage.
  • the pliable member preferably defines an interior within which the one or more passages are formed.
  • the passages open onto open end areas that establish communication between adjacent passages.
  • the heating elements in each pair of adjacent passages define a connector portion located in one of the open areas, such that the heating elements are preferably formed of a single length of heating wire that extends back and forth within the passages throughout the area of the pliable member.
  • the heating wire defines a pair of ends, which are secured to a heating wire connector mounted to a circuit board, which in turn has a connector for receiving power from a
  • the heating wire in each passage has a wave-type or sinusoidal configuration throughout the extent of the passage.
  • the invention contemplates a heating device having a heating element arrangement as set forth above, as well as an improvement in a heating device having a pliable member and a method of positioning heating elements within an interior defined by a pliable member, substantially in accordance with the foregoing summary.
  • Fig. 1 is an isometric view illustrating an electrically operated heating device, such as an electric blanket, mattress pad, heating pad or throw, incorporating the heating element arrangement of the present invention
  • Fig. 2 is a partial section view taken along line 2-2 of Fig. 1, showing a first embodiment for positioning the heating elements into the interior of a pliable member forming a part of the electrically operated device;
  • Fig. 3 is a view similar to Fig. 2, showing another embodiment for incorporating the heating element arrangement of the present invention into the pliable member forming a part of the electrically operated heating device;
  • Fig. 4 is a plan view showing the arrangement of the heating elements incorporated in the pliable member forming a part of the electrically operated heating device of Fig. 1.
  • an electrically operated heating device which may be an electric blanket, heating pad, mattress pad, or throw shown generally at 20, consists of a pliable member generically designated as a blanket portion 22, a power supply 24 and a controller 26.
  • Power supply 24 includes a housing 28 within which the components of power supply 24 are contained.
  • a connection cable 30 has a connector
  • Connector 32a is adapted for
  • Power supply 24 includes a power output receptacle with which connector 32b is adapted to be engaged, such that cable 30 communicates power from power supply 24 to blanket portion 22.
  • controller 26 includes a connection cable 36 having a connector 38 at its opposite end adapted for selective engagement with a control receptacle incorporated in power supply 24.
  • a power input cord 40 extends from power supply 24, and includes a plug 42 at its end for engagement with a wall outlet or the like, to supply conventional
  • Power supply 24 may representatively have a construction and operation as shown and described in co-pending Application Serial No. filed (Attorney Docket No. 700.001), the disclosure of which is hereby incorporated by reference. Power supply 24 converts the 110 VAC input power from power supply cord 40 into low voltage output power that is supplied to blanket portion 22 through cable 30, as well as to controller 26 through cable 36, for controlling the operation of power supply 24 to control the output of power to blanket portion 22.
  • blanket portion 22 may have a construction including a top layer 44 and a bottom layer 46.
  • a series of heating elements 48a, 48b, 48c, 48d, etc. are located between top layer 44 and bottom layer 46.
  • Heating elements 48a, 48b, 48c, 48d, etc. are contained within respective longitudinal passages 50a, 50b, 50c, 50d, etc., which are formed by spaced apart linear connections 52 between top layer 44 and bottom layer 46.
  • Passages 50a, 50b, 50c, 50d, etc. are all parallel to each other, and may either run in a lengthwise or crosswise direction throughout the area of blanket portion 22.
  • carrier member 54 which includes a top layer 56 and a bottom layer 58 that are connected at spaced apart linear connections 60 to form separate parallel passages 62a, 62b, 62c, 62d, etc. within which heating elements 48a, 48b, 48c, 48d, etc. are contained.
  • Carrier 54 is located between a top layer 64 and a bottom layer 66 of blanket portion 22, which define edges that are connected together to enclose carrier 54. In this manner, carrier 54 is prefabricated and heating elements 48a,
  • connections such as 52, 60 between the layers within which the passages are defined may be made in any satisfactory manner, such as by stitching, ultrasonic bonding, etc.
  • Fig. 4 illustrates the arrangement of heating elements 48a, 48b, 48c, 48d, etc. within blanket portion 22 in accordance with the present invention.
  • Fig. 4 illustrates carrier 54 with top layer 64 removed. The areas of bottom layer 66 that are destined to be connected to top layer 64 are shown at C, to illustrate passages 62a, 62b, 62c, 62d, etc.
  • Heating elements 48a, 48b, 48c, 48d, etc. extend throughout the length of respective passages 62a, 62b, 62c, 62d, etc.
  • Each heating element has a non-linear configuration as positioned within its respective passage, such that the overall length of the heating element exceeds that of the passage within which the heating element is located.
  • the heating elements have an undulating or sinusoidal wave-type configuration. It is understood, however, that any other satisfactory non-linear configuration may be employed, e.g. a zigzag configuration, a loop configuration, etc.
  • the heating elements 48a, 46b, 48c, 48d, etc. are all formed of a single length of heating wire, which representatively may be a gauge wire formed of a material such as , which has been found to provide a satisfactory resistive load to generate heat throughout the area of blanket portion 22 when supplied with low voltage electrical power from power supply 24. It is understood, however, that any type of electric blanket heating wire of any gauge may be used, in a manner as is known.
  • Each part of adjacent heating elements are connected together at one end, such that a single length of wire is used throughout the area of blanket portion 22.
  • heating element 48a is interconnected with heating element 48b by means of a connector 68a located outwardly of the ends of passages 48a, 48b and connection area C therebetween.
  • Connector portion 68a defines a loop which is located in an open area 70 into which the passages 48a, 48b, 48c, 48d, etc. open, which establishes communication between the adjacent passages.
  • DOC / ⁇ 5 48b is connected to the adjacent heating element 48c via a connector portion 68b which extends between and interconnects the ends of heating elements 48b and 48c.
  • Connector portion 68b defines a loop that is located outwardly of the end of the connection area C between passages 62b and 62c, and is located in an open area 72 into which the opposite ends of passages 62a, 62b, 62c, 62d, etc. open, which establishes communication between the adjacent passages.
  • the end heating elements shown at 48 a and 48x, have lead sections 74 that are connected to a heating wire connector 76 mounted to a PCB junction box 78.
  • a supply power connector 80 is also mounted to junction box 78, and includes power input prongs 34 that extend outwardly of blanket portion 22 for engagement with connector 32a of cable 30.
  • Junction box 78 also includes a pair of stitch slots 82, which are adapted to receive stitch lines that connect top and bottom layers 64, 66, respectively, to maintain junction box 78 in position within the interior of blanket portion 22.
  • heating elements 48a, 48b...48x In operation, power that is supplied to the heating elements 48a, 48b...48x through junction box 78 and heating wire coimector 76 functions to generate heat within blanket portion 22.
  • the arrangement of heating elements 48a, 48b,...48x provides a uniform distribution of heat throughout the surface area of blanket portion 22, to prevent the presence of cool spots in blanket portion 22.
  • blanket portion 22 is subjected to a concentrated load, e.g. from the knee or elbow area of a user, the undulating or wave-type configuration of heating elements 48a, 48b,...48x allow the heating element that is subjected to the load to stretch, so as to prevent the heating element from being exposed to tensile forces which otherwise could result in breaking of the heating element or disconnection from the power input.
  • blanket portion 22 is capable of withstanding significant concentrated loads without any adverse effects on the heating elements, to prolong the life of blanket portion 22 and to maintain its continuous operation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Central Heating Systems (AREA)
  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)

Abstract

L'invention concerne un dispositif chauffant à commande électrique, tel qu'une couverture électrique, un couvre-matelas, une bouillotte ou un jeté sous forme d'élément souple, contenant des éléments chauffants conçus pour éviter de se briser ou de se déconnecter lorsque l'élément souple est soumis à une charge concentrée qui applique une tension sur les éléments chauffants. L'élément souple renferme une série de passages à l'intérieur desquels sont situés les éléments chauffants. Les éléments chauffants sont disposés de façon non linéaire pour que la longueur globale de l'élément chauffant contenu dans chaque passage soit supérieure à celle du passage, ce qui permet aux éléments chauffants de s'étendre et de se plier lorsque la couverture est soumise à une charge concentrée. Les extrémités des éléments chauffants adjacents sont connectées afin que les éléments chauffants ne forment qu'une seule longueur de fil chauffant disposé dans un sens et dans l'autre à travers toute la surface de la couverture. Les extrémités du fil chauffant sont reliées à une alimentation servant à fournir de l'énergie électrique aux éléments chauffants.
PCT/US2003/032005 2002-10-11 2003-10-09 Disposition d'element chauffant pour couverture electrique ou analogue Ceased WO2004034745A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003282517A AU2003282517A1 (en) 2002-10-11 2003-10-09 Heating element arrangement for an electric blanket or the like
GB0506452A GB2408903B (en) 2002-10-11 2003-10-09 Heating element arrangement for an electric blanket or the like

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/269,454 2002-10-11
US10/269,454 US6713724B1 (en) 2002-10-11 2002-10-11 Heating element arrangement for an electric blanket or the like

Publications (1)

Publication Number Publication Date
WO2004034745A1 true WO2004034745A1 (fr) 2004-04-22

Family

ID=31993604

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/032005 Ceased WO2004034745A1 (fr) 2002-10-11 2003-10-09 Disposition d'element chauffant pour couverture electrique ou analogue

Country Status (4)

Country Link
US (1) US6713724B1 (fr)
AU (1) AU2003282517A1 (fr)
GB (1) GB2408903B (fr)
WO (1) WO2004034745A1 (fr)

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NO318001B1 (no) * 2002-09-02 2005-01-17 Nexans Fremgangsmate for fremstilling av et elektrisk kabelsystem
US20040217110A1 (en) * 2003-04-30 2004-11-04 Brent Gray Heating blanket and methods for curing composites
SE0301360L (sv) * 2003-05-09 2004-10-12 Saab Ab Termisk målanordning med strömslingor
US20050274715A1 (en) * 2004-05-28 2005-12-15 Roy Johnson Carbon based heating device, system and method of use thereof
US7193179B2 (en) * 2005-01-12 2007-03-20 Milliken & Company Channeled under floor heating element
US7180032B2 (en) * 2005-01-12 2007-02-20 Milliken & Company Channeled warming mattress and mattress pad
US7193191B2 (en) 2005-05-18 2007-03-20 Milliken & Company Under floor heating element
US7189944B2 (en) * 2005-05-18 2007-03-13 Milliken & Company Warming mattress and mattress pad
US7876917B2 (en) 2006-08-28 2011-01-25 Youngtack Shim Generic electromagnetically-countered systems and methods
US20110095935A1 (en) * 2006-08-28 2011-04-28 Youngtack Shim Electromagnetically-countered systems and methods by maxwell equations
US9112395B2 (en) 2006-08-28 2015-08-18 Youngtack Shim Electromagnetically-countered actuator systems and methods
US8625306B2 (en) 2006-08-28 2014-01-07 Youngtack Shim Electromagnetically-countered display systems and methods
US20100314381A1 (en) * 2008-01-28 2010-12-16 Ching Chuan Wang Heating device
US20140034628A1 (en) * 2012-08-06 2014-02-06 Chien-Chou Chen Temperature control module for electric blankets
US20140042657A1 (en) * 2012-08-08 2014-02-13 Makerbot Industries, Llc Printed circuit board with integrated temperature sensing
CN104055370A (zh) * 2013-03-23 2014-09-24 滕翔升 带自检功能的无辐射电热毯
CN105029975A (zh) * 2015-07-29 2015-11-11 嘉兴方晟电子科技有限公司 一种电加热毯
CN107333341A (zh) * 2017-08-03 2017-11-07 贵州励天科技发展有限公司 一种压力触发式电热毯
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US11696861B1 (en) * 2020-06-15 2023-07-11 Kendrick L. Riley Crib bedding with temperature gauge
CN219165736U (zh) * 2022-10-13 2023-06-13 深圳库森科技贸易有限公司 一种发热服控制装置及其发热服
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Also Published As

Publication number Publication date
US6713724B1 (en) 2004-03-30
GB2408903A (en) 2005-06-08
GB2408903B (en) 2006-02-22
US20040069760A1 (en) 2004-04-15
AU2003282517A1 (en) 2004-05-04
GB0506452D0 (en) 2005-05-04

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